M20 : Need advice on starting minoxidil

My hairfall started in November 2024. I visited dermatologist and was prescribed some multivitamin medicines and hair strengthening serums along with anti-dandruff shampoo.
I did that for 2 months. Then in next visit, the doctor prescribed more multivitamin medicines and different hair strengthening serums and shampoos. In this visit they said that if now there is no change, we need to start PRP. I didn’t want to do this.

After this, my hairfall decreased but I suffer from hair thinning and daily 30-40 hairfall. Last month I visited other doctor, they prescribed minoxidil but I didn’t want to commit to minoxidil for lifetime so I didn’t take it.

Now hairfall has increased again. If I start minoxidil and use it for 3-4 months, then stop using it, will it be okay? I do not want to commit to minoxidil and apply it for lifetime.

If I use minoxidil for 3-4 months and then stop using it (assuming my hair thickens and I gain hair density), will the regrown hair start to fall again?

Context: I am an engineering student (so take stress frequently regarding studies), I eat canteen food daily and also go to the gym 3 times a week.
My father is bald and my mother also has low hair density.

minoxidil boosting growth, but it doesn’t fix the main causes like genetics or poor nutrition. If you use it for a few months and then stop, any hair you gained will probably fall out again after a while. It’s also worth getting your iron, vitamin D, B12, and thyroid levels checked. Some other serums with stuff like caffeine or saw palmetto might help a bit, but they’re usually not as strong as minoxidil. And it’s been said minoxidil is the fertilizer, finasteride is the weed killer.